Detailed comparison and review of Lenovo ThinkBook 15 G4 IAP (21DJ) and HP EliteBook 835 G9 Notebook. With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.
Advantages and disadvantages of Lenovo ThinkBook 15 G4 IAP (21DJ) based on its technical characteristics, features, user experience, expert reviews and price level.
robust aluminum design
efficient multitasking performance
comprehensive connectivity options
fast charging support
competitive pricing
average display quality
modest battery life
limited graphics performance
noisy under load
Advantages and disadvantages of HP EliteBook 835 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
lightweight and portable
powerful processor performance
bright display quality
fast charging support
average battery life
limited graphics capabilities
higher price point
noisy under load
| DESIGN AND DIMENSIONS | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.7 cm x 23.5 cm x 1.89 cm | 30.01 cm x 21.5 cm x 1.92 cm |
| Weight | 1.7 kg | 1.295 kg |
| Case Material | Aluminium (top), polycarbonate ABS (bottom) | - |
| Colour | Dual tone mineral grey | - |
| DISPLAY | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Screen Size (Type) | 15.6" - IPS | 13.3" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | WLED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | - |
| Colour Gamut | 45% NTSC | - |
| Features | Anti-glare, 170° viewing angle | Anti-glare, 8-bit Colour Depth |
| PROCESSOR | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| CPU | Intel Core i5 (12th Gen) 1235U / 1.3 GHz | AMD Ryzen 7 6800U / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 4.7 GHz |
| Number of Cores | 10-core | 8-core |
| Cache | 12 MB | L3 - 16 MB |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| RAM | 8 GB (provided memory is soldered) | 0 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 40 GB | 16 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 3200 MHz | - |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
| Slots Qty | 1 | - |
| Empty Slots | 1 | - |
| STORAGE | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe) | - |
|---|
| AUDIO & VIDEO | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | AMD Radeon 680M |
|---|---|---|
| Max Monitors Supported | 3 external monitor(s) | - |
| Camera | Yes - 1080p | - |
| Camera Features | Privacy shutter, fixed focus | - |
| Sound | Stereo speakers, dual array microphone | Dual stereo speakers, dual array microphone |
| Codec | Realtek ALC3287 | Realtek ALC3315 |
| Compliant Standards | High Definition Audio, Dolby Audio | - |
| Audio Features | - | Output: Bang & Olufsen Audio |
| COMMUNICATIONS | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | - |
|---|---|---|
| Wireless Controller | M.2 Card | - |
| Network Interface | Gigabit Ethernet | - |
| Ethernet Controller | Intel I219-V | - |
| Features | Wake-on-LAN (WOL), dual stream (2x2) | - |
| BATTERY | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Technology | Lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | - |
| Battery Life | Up to 8 hours | - |
| Battery Run Time | Local video (1080p) playback time (150 nits): up to 8 hours | - |
| AC ADAPTER | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Input | AC 100-240 V (50/60 Hz) | - |
|---|---|---|
| Output | 65 Watt | - |
| INPUT | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Type | Keyboard, touchpad | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium |
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad | Volume control, multi-touch clickpad, gesture function, precision touchpad, spill-resistant |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Interfaces | 2 x USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
2 x USB4/DisplayPort 1.4 (Power Delivery) USB 3.2 Gen 1 HDMI Headphone/microphone combo jack USB 3.2 Gen 1 (charging) |
|---|---|---|
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | - |
| SOFTWARE | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Operating System (OS) | Windows 11 Pro - English | No operating system |
|---|---|---|
| Software Included | Microsoft Office (Trial) | - |
| MISCELLANEOUS | Lenovo ThinkBook 15 G4 IAP (21DJ) | HP EliteBook 835 G9 Notebook |
|---|
| Included Accessories | USB-C slim wall mount power adapter | - |
|---|---|---|
| Integrated Options | - | Hall sensor, HP Tamper Lock, thermal sensor |
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington nano security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro | Automatic DriveLock, BIOS Absolute Persistence, HP DriveLock, HP Fast Charge, BIOS Update via Network, MIL-STD-810H tested, Secured-core PC capable |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TUV Rheinland Low Blue Light (Software Solution) | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FIPS 140-2 Level 2, FCC, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP, BNCI |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Gold | - |
| Product Recycled Content | - | Ocean-bound plastics |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 5 °C | 0 °C |
| Humidity Range Operating | 8 - 95% | 10 - 90% (non-condensing) |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | - |
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